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The simplest rationalising factor of 2√5 - √3 is A. 2√5 + 3 B. 2√5 +  C. √5 + √3 D. √5 - √3

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The simplest rationalising factor of 2√5 - √3 is

A. 2√5 + 3

B. 2√5 + 

C. √5 + √3

D. √5 - √3

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Best answer

Simplest rationalizing factor of 2√5 - √3

= 1/(2√5 - √3)

= 2√5 + √3

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